OA1MPA Datasheet, PDF (6/28 Pages) STMicroelectronics – Medical instrumentation

Electrical characteristics
3
Electrical characteristics
OA1MPA, OA2MPA, OA4MPA
V_CC+ = 1.8 V with V_CC- = 0 V, V_icm = V_CC/2, T = 25 °C, and R_L = 10 k connected to V_CC/2
(unless otherwise specified)
Symbol
Table 4. Electrical characteristics
Parameter
Conditions
Min.
DC performance
Input offset voltage
V_io
(V_icm = 0 V)
V_io/T
I_io
Input offset voltage drift
Input offset current
(V_out = V_CC/2)
T = 25 °C
-40 °C < T< 85 °C
-40 °C < T< 125 °C
-40 °C < T< 125 °C⁽¹⁾
T = 25 °C
-40 °C < T< 125 °C
T = 25 °C
I_ib
Input bias current (V_out = V_CC/2)
-40 °C < T< 125 °C
Common mode rejection ratio T = 25 °C
69
CMR ^{20 log (Vicm/Vio)}
V_icm = 0 V to V_CC,
-40 °C < T< 125 °C
61
V_out = V_CC/2, R_L > 1 M
Large signal voltage gain
T = 25 °C
95
A_vd
V_out = 0.5 V to (V_CC - 0.5 V)
-40 °C < T< 125 °C
85
High level output voltage
V_OH
(V_OH = V_CC - V_out)
T = 25 °C
-40 °C < T< 125 °C
V_OL Low level output voltage
T = 25 °C
-40 °C < T< 125 °C
I_{sink (}V_out = V_CC)
I_out
I_{source (}V_out = 0 V)
T = 25 °C
6
-40 °C < T< 125 °C
4
T = 25 °C
5
-40 °C < T< 125 °C
3
I_CC
Supply current (per channel,
V_out = V_CC/2, R_L > 1 M
T = 25 °C
-40 °C < T< 125 °C
AC performance
GBP
F_u
F_m
G_m
Gain bandwidth product
Unity gain frequency
Phase margin
Gain margin
100
R_L = 10 k, C_L = 100 pF
Typ. Max. Unit
200
850
V
1200
10 V/°C
1
10⁽²⁾
1
300⁽²⁾
pA
1
10⁽²⁾
1
300⁽²⁾
88
dB
75
80
mV
40
60
12
mA
7
9
14
µA
16
120
kHz
100
45
Degrees
19
dB
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